Man, all kids like that end up doing is studying, going to school and participating in extracurriculars....think about it - school starts at 7:00 am. Ends around 2pm. Let's say 2 hours a day for extracurricular activities........that's more time than they'd have for a social life in college.......high school was much more intense on that schedule than college was. I, being a kid like that, was shocked and kind of bored with the academics. Going to college early they can spend less time in school, more time studying - doing what they would've done anyway in grade school......I mean, it's no different.
Give me ONE activity these kids would've done in high school that they won't get a chance to do in college.....and don't you dare say prom (hahaha).
When I was in high school, I had no life outside of it - 7am start - 2pm school finish, then 2-3 in one of my extracurriculars then off to sports practice until 6-7......every day. Tell me that college wouldn't be easier for those kids.